Application of the Combined Method for Evaluating the Compressive Strength of Concrete on Site


Ultrasonic pulse velocity (UPV) and rebound hammer (RH) tests are often used for assessing the quality of concrete and estimation of its compressive strength. Several parameters influence this property of concrete as the type and size of aggregates, cement content, the implementation of concrete, etc. To account for these factors, both of the two tests are combined and their measurements are calibrated with the results of mechanical tests on cylindrical specimens cast on site and on cores taken from the existing structure in work progress at the new-city Massinissa El-Khroub Constantine in Algeria. In this study; the two tests cited above have been used to determine the concrete quality by applying regression analysis models between compressive strength of in situ concrete on existing structure and the nondestructive tests values, the combined method is used, equations are derived using statistical analysis (simple and multiple regression) to estimate compressive strength of concrete on site and the reliability of the technique for prediction of the strength is discussed for this case study.

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S. Hannachi and M. Guetteche, "Application of the Combined Method for Evaluating the Compressive Strength of Concrete on Site," Open Journal of Civil Engineering, Vol. 2 No. 1, 2012, pp. 16-21. doi: 10.4236/ojce.2012.21003.

Conflicts of Interest

The authors declare no conflicts of interest.


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